Clarify vouch/praise logic with tooltips

BUSINESS LOGIC CLARIFICATION:
- Non-members can RECEIVE vouches/praises from NAO members (builds reputation)
- Non-members cannot CREATE vouches/praises (must be NAO member)
- NAO members can both give and receive vouches/praises

TOOLTIP UPDATES:
- Members: "Vouches given and received" / "Praises given and received"
- Non-members: "Vouches received from NAO members" / "Praises received from NAO members"

This allows reputation building for contacts before they join NAO while maintaining
the integrity that only verified NAO members can create vouches/praises.

🤖 Generated with [Claude Code](https://claude.ai/code)

Co-Authored-By: Claude <noreply@anthropic.com>

src/pages/ContactListPage.tsx

@@ -349,12 +349,13 @@ const ContactListPage = () => {
                               ) : null;
                             })()}
                             
-                            {/* Vouch and Praise Indicators */}
+                            {/* Vouch and Praise Indicators - Show received vouches/praises for everyone */}
                             <Chip
                               icon={<VerifiedUser sx={{ fontSize: 14 }} />}
                               label="2"
                               size="small"
                               variant="outlined"
+                              title={contact.naoStatus === 'member' ? 'Vouches given and received' : 'Vouches received from NAO members'}
                               sx={{
                                 fontSize: '0.75rem',
                                 height: 20,
@@ -372,6 +373,7 @@ const ContactListPage = () => {
                               label="3"
                               size="small"
                               variant="outlined"
+                              title={contact.naoStatus === 'member' ? 'Praises given and received' : 'Praises received from NAO members'}
                               sx={{
                                 fontSize: '0.75rem',
                                 height: 20,